This follows #8232 which added the code to generate the code required to parse
HCL files for each packer component.
All old config files of packer will keep on working the same. Packer takes one
argument. When a directory is passed, all files in the folder with a name
ending with “.pkr.hcl” or “.pkr.json” will be parsed using the HCL2 format.
When a file ending with “.pkr.hcl” or “.pkr.json” is passed it will be parsed
using the HCL2 format. For every other case; the old packer style will be used.
## 1. the hcl2template pkg can create a packer.Build from a set of HCL (v2) files
I had to make the packer.coreBuild (which is our one and only packer.Build ) a public struct with public fields
## 2. Components interfaces get a new ConfigSpec Method to read a file from an HCL file.
This is a breaking change for packer plugins.
a packer component can be a: builder/provisioner/post-processor
each component interface now gets a `ConfigSpec() hcldec.ObjectSpec`
which allows packer to tell what is the layout of the hcl2 config meant
to configure that specific component.
This ObjectSpec is sent through the wire (RPC) and a cty.Value is now
sent through the already existing configuration entrypoints:
Provisioner.Prepare(raws ...interface{}) error
Builder.Prepare(raws ...interface{}) ([]string, error)
PostProcessor.Configure(raws ...interface{}) error
close#1768
Example hcl files:
```hcl
// file amazon-ebs-kms-key/run.pkr.hcl
build {
sources = [
"source.amazon-ebs.first",
]
provisioner "shell" {
inline = [
"sleep 5"
]
}
post-processor "shell-local" {
inline = [
"sleep 5"
]
}
}
// amazon-ebs-kms-key/source.pkr.hcl
source "amazon-ebs" "first" {
ami_name = "hcl2-test"
region = "us-east-1"
instance_type = "t2.micro"
kms_key_id = "c729958f-c6ba-44cd-ab39-35ab68ce0a6c"
encrypt_boot = true
source_ami_filter {
filters {
virtualization-type = "hvm"
name = "amzn-ami-hvm-????.??.?.????????-x86_64-gp2"
root-device-type = "ebs"
}
most_recent = true
owners = ["amazon"]
}
launch_block_device_mappings {
device_name = "/dev/xvda"
volume_size = 20
volume_type = "gp2"
delete_on_termination = "true"
}
launch_block_device_mappings {
device_name = "/dev/xvdf"
volume_size = 500
volume_type = "gp2"
delete_on_termination = true
encrypted = true
}
ami_regions = ["eu-central-1"]
run_tags {
Name = "packer-solr-something"
stack-name = "DevOps Tools"
}
communicator = "ssh"
ssh_pty = true
ssh_username = "ec2-user"
associate_public_ip_address = true
}
```
It is simply the best/simplest solution and trying to prevent users from passing and integer here would be like opening a can of worms. Because:
* we cannot make mapstructure validate our duration string ( with an UnmarshalJSON func etc.)
* we cannot make mapstructure spit a string instead of a duration and packer will decode-encode-decode config.
* the hcl2 generated code asks for a string, so this will be enforced by default.
Before this commit it was possible to set a duration using an integer or a float. Go's time.Duration is an int64 internally an mapstructure will take advantage of this and load the number as a int64 but `1` means one ns which is unexpected/confusing. To avoid confusion and enforce readability this forces users to pass a string with a unit for a duration; ex "56s".
* I had to contextualise Communicator.Start and RemoteCmd.StartWithUi
NOTE: Communicator.Start starts a RemoteCmd but RemoteCmd.StartWithUi will run the cmd and wait for a return, so I renamed StartWithUi to RunWithUi so that the intent is clearer.
Ideally in the future RunWithUi will be named back to StartWithUi and the exit status or wait funcs of the command will allow to wait for a return. If you do so please read carrefully https://golang.org/pkg/os/exec/#Cmd.Stdout to avoid a deadlock
* cmd.ExitStatus to cmd.ExitStatus() is now blocking to avoid race conditions
* also had to simplify StartWithUi
* removed packer.Cache and references since packer.Cache is never used except in the download step. The download step now uses the new func packer.CachePath(targetPath) for this, the behavior is the same.
* removed download code from packer that was reimplemented into the go-getter library: progress bar, http download restart, checksuming from file, skip already downloaded files, symlinking, make a download cancellable by context.
* on windows if packer is running without symlinking rights and we are getting a local file, the file will be copied instead to avoid errors.
* added unit tests for step_download that are now CI tested on windows, mac & linux.
* files are now downloaded under cache dir `sha1(filename + "?checksum=" + checksum) + file_extension`
* since the output dir is based on the source url and the checksum, when the checksum fails, the file is auto deleted.
* a download file is protected and locked by a file lock,
* updated docs
* updated go modules and vendors
this regroups the calls of tmp func calls into one package.
the tmp pkg allows to store tmp files under a common directory for easier managment
Squashed commit of the following:
commit 74b674c01560c6b547e9cab5e8afb486f0fe7d6c
Merge: fc94b5714 66001525d
Author: Matthew Patton <mpatton@enquizit.com>
Date: Fri Nov 2 02:02:38 2018 -0400
Merge branch 'remove_TMPDIR_docs' of github.com:tb3088/packer into remove_TMPDIR_docs
commit fc94b571428447aaf2e5171967c95cdf9e5c73ff
Author: Matthew Patton <mpatton@enquizit.com>
Date: Fri Nov 2 01:42:38 2018 -0400
update tests to honor configured temporary directory
commit 5a562359f4937af506607dd96ed1c46426093f52
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 18:52:38 2018 -0400
sync straggler to refactor. implement tests at packer/configfile instead of buried in docker.
commit 9d5a4a0935bfd049e2f8f50ad73e4455b42c9410
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 15:39:46 2018 -0400
insert URL to GoLang API for os.TempDir()
commit fbae4c2e051898aecd8705e9d8a20353430ede23
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 07:41:29 2018 -0400
revise documentation to match code
commit 3590fae8bd0afa92a161a49ed794ee32e357d583
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 07:21:59 2018 -0400
refacter config_file. replace all hard-coded os.TempDir with wrapper
commit d5c5306a97b648ded06a8eb76ce728f07c9924f0
Author: Matthew Patton <mpatton@enquizit.com>
Date: Wed Oct 31 20:11:36 2018 -0400
close massive file overwrite hole with TempDir
commit 0a72297da86089fbd07e4f7d9472a92fa4d1c733
Author: Matthew Patton <mpatton@enquizit.com>
Date: Wed Oct 31 01:06:00 2018 -0400
adjust var declaration scope
commit 20f68228b6c372d984ea5b055cfc8bda9b110ac5
Author: Matthew Patton <mpatton@enquizit.com>
Date: Wed Oct 31 00:54:35 2018 -0400
use mktemp() equivalent to create temporary directory
commit c73ebe3d8321664a2685a0baa8e441dd895b0db4
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 20:40:58 2018 -0400
remove extraneous variable declaration, fix FOR loop
commit 63549b8bd745a0090b15ed0b0ebf644162db27db
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 19:30:44 2018 -0400
match styistic convension with rest of docs
commit 976101074942db36f10d3a686d6d29ddb7c01926
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 19:08:39 2018 -0400
revert dangling config file change
commit 95159afbc05eac96ed11c3183af5fb0abe2f2d5c
Author: Matthew Patton <matthew.patton@itgfirm.com>
Date: Fri Dec 29 23:53:43 2017 -0500
replace invalid TMPDIR variable wth PACKER_TMP_DIR.
update ConfigTmpDir() to try common temporary paths first and
only write to configDir() as a last resort.
commit 66001525d72de56a4cf9339b900c46f59bc6e91a
Author: Matthew Patton <mpatton@enquizit.com>
Date: Fri Nov 2 01:42:38 2018 -0400
update tests to honor configured temporary directory
commit e9b6adefeae8c65eb8aa47fef38cbf0aa424338c
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 18:52:38 2018 -0400
sync straggler to refactor. implement tests at packer/configfile instead of buried in docker.
commit 852113ed076e2d14e5dca6815ea680da1e2896bb
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 15:39:46 2018 -0400
insert URL to GoLang API for os.TempDir()
commit 54add38d1d1c6e283cd444b367ed8bd49a5f3699
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 07:41:29 2018 -0400
revise documentation to match code
commit 6b5b8f6d4edad0e187ca13d64ac4118f34eee643
Author: Matthew Patton <mpatton@enquizit.com>
Date: Thu Nov 1 07:21:59 2018 -0400
refacter config_file. replace all hard-coded os.TempDir with wrapper
commit c22092c601c33484327674f322c7379fa41506d7
Author: Matthew Patton <mpatton@enquizit.com>
Date: Wed Oct 31 20:11:36 2018 -0400
close massive file overwrite hole with TempDir
commit 7a730450916bf8e5dbc2a741ec233a49466ab7cc
Author: Matthew Patton <mpatton@enquizit.com>
Date: Wed Oct 31 01:06:00 2018 -0400
adjust var declaration scope
commit 0f2933adb6f6922dfeab78a95371a444ec8918ab
Author: Matthew Patton <mpatton@enquizit.com>
Date: Wed Oct 31 00:54:35 2018 -0400
use mktemp() equivalent to create temporary directory
commit d74839ede05dacf712b55a7bb48aec19fe6b007f
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 20:40:58 2018 -0400
remove extraneous variable declaration, fix FOR loop
commit eb65416619437e4a3dec90277770803dd5b2281c
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 19:30:44 2018 -0400
match styistic convension with rest of docs
commit acaa2b31ed463219c4ef099f351eec72406e2989
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 19:08:39 2018 -0400
revert dangling config file change
commit e573fde668dcb418561e61535c1d68b2888f5b0f
Author: Matthew Patton <matthew.patton@itgfirm.com>
Date: Fri Dec 29 23:53:43 2017 -0500
replace invalid TMPDIR variable wth PACKER_TMP_DIR.
update ConfigTmpDir() to try common temporary paths first and
only write to configDir() as a last resort.
commit 39a9874afc9dea71b36753375fb7feb61ffecf69
Merge: 8a413cfe8 3315812c2
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Oct 30 18:19:26 2018 -0400
Merge branch 'master' of https://github.com/hashicorp/packer into prestine
commit 8a413cfe83b0a70dbd99c32d936334ca5788ca9b
Merge: e07491de5 4e14710a6
Author: Matthew Patton <mpatton@enquizit.com>
Date: Mon Oct 1 20:18:10 2018 -0400
Merge remote-tracking branch 'upstream/master' into prestine
commit e07491de59cead0b337a7f57f4a6c625e1f560ab
Merge: 42610a35d a1fa35dff
Author: Matthew Patton <mpatton@enquizit.com>
Date: Tue Aug 21 13:26:19 2018 -0400
Merge remote-tracking branch 'upstream/master' into prestine
commit 42610a35d5ef65af8844a58ad70e2ec75262da6a
Merge: 5298142da 0d63cf7bc
Author: Matthew Patton <matthew.patton@itgfirm.com>
Date: Tue Jun 19 22:45:05 2018 -0400
Merge remote-tracking branch 'upstream/master' into prestine
commit 5298142da6da95354844f201deeeef3c599e48b2
Merge: 7bb110bc7 9d9736552
Author: Matthew Patton <mpatton@enquizit.com>
Date: Mon Jun 11 15:10:09 2018 -0400
Merge remote-tracking branch 'upstream/master' into prestine
commit 7bb110bc744c9797fcaec25a265d9b85a22d6d6b
Merge: a61c869ca 6189d66e7
Author: Matthew Patton <matthew.patton@itgfirm.com>
Date: Wed May 9 23:41:22 2018 -0400
Merge remote-tracking branch 'upstream/master' into prestine
commit a61c869ca7268acf0e3b1e1fa7a8ee7feea65984
Merge: 098101dd9 4be5f072c
Author: Matthew Patton <matthew.patton@itgfirm.com>
Date: Fri May 4 10:13:04 2018 -0400
Merge remote-tracking branch 'upstream/master' into prestine
commit 098101dd99f08b0ca110d33eff6904537c6d21de
Merge: fefaf0fa6554b2b4a5
Author: Matthew Patton <matthew.patton@itgfirm.com>
Date: Tue May 1 20:52:30 2018 -0400
Merge branch 'EOL-handling' into prestine
Co-Authored-By: Matthew Patton <pattonme@yahoo.com>
Megan Marsh
Adrien Delorme
Caleb Lemoine
Adrien Delorme
Lars Lehtonen
Christian Muehlhaeuser
Paul Meyer
xinau
Matt Dainty
Ali Rizvi-Santiago
Rémi Jouannet
Matthew Hooker
Ashley Lowde